在手工焊接过程中,焊完第一道焊缝后,焊工在进行清渣等辅助工作时,焊机往往是空载运行。而用于配合装配工进行组装的焊机,空载运行的时间更多于焊接时间。例如校装筒身时空载运行时间与焊接时间的比例大概3:1。由于直流焊机用电量大,空载运行的耗电量也较多,以AX5—500直流焊机为例,空载运行时,线电流17—21A,视在功率11.2～13.9VA。 In the manual welding process, welding the first weld, the welder in the slag and other auxiliary work, the welder is often no-load operation. The welder, which is used to assemble with the assembler, runs more without load than with the welding time. For example, school-mounted body time and space-time running time and welding time ratio of about 3: 1. As the DC welding machine with large power consumption, no-load operation is also more AX5-500 DC welding machine, for example, no-load operation, the line current 17-21A, apparent power 11.2 ~ 13.9VA.